--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libs/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/USART/HalfDuplex/main.c	Mon Oct 03 21:19:15 2011 +1030
@@ -0,0 +1,274 @@
+/**
+  ******************************************************************************
+  * @file    USART/HalfDuplex/main.c 
+  * @author  MCD Application Team
+  * @version V3.5.0
+  * @date    08-April-2011
+  * @brief   Main program body
+  ******************************************************************************
+  * @attention
+  *
+  * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
+  * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
+  * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
+  * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
+  * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
+  * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
+  *
+  * <h2><center>&copy; COPYRIGHT 2011 STMicroelectronics</center></h2>
+  ******************************************************************************
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f10x.h"
+#include "platform_config.h"
+
+/** @addtogroup STM32F10x_StdPeriph_Examples
+  * @{
+  */
+
+/** @addtogroup USART_HalfDuplex
+  * @{
+  */ 
+
+/* Private typedef -----------------------------------------------------------*/
+typedef enum {FAILED = 0, PASSED = !FAILED} TestStatus;
+
+/* Private define ------------------------------------------------------------*/
+#define TxBufferSize1   (countof(TxBuffer1) - 1)
+#define TxBufferSize2   (countof(TxBuffer2) - 1)
+
+/* Private macro -------------------------------------------------------------*/
+#define countof(a)   (sizeof(a) / sizeof(*(a)))
+
+/* Private variables ---------------------------------------------------------*/
+USART_InitTypeDef USART_InitStructure;
+uint8_t TxBuffer1[] = "USART Half Duplex: USARTy -> USARTz using HalfDuplex mode";
+uint8_t TxBuffer2[] = "USART Half Duplex: USARTz -> USARTy using HalfDuplex mode";
+uint8_t RxBuffer1[TxBufferSize2];
+uint8_t RxBuffer2[TxBufferSize1];
+uint32_t NbrOfDataToRead1 = TxBufferSize2;
+uint32_t NbrOfDataToRead2 = TxBufferSize1;
+uint8_t TxCounter1 = 0, RxCounter1 = 0;
+uint8_t TxCounter2 = 0, RxCounter2 = 0;
+volatile TestStatus TransferStatus1 = FAILED, TransferStatus2 = FAILED;  
+
+/* Private function prototypes -----------------------------------------------*/
+void RCC_Configuration(void);
+void GPIO_Configuration(void);
+TestStatus Buffercmp(uint8_t* pBuffer1, uint8_t* pBuffer2, uint16_t BufferLength);
+  
+/* Private functions ---------------------------------------------------------*/
+
+/**
+  * @brief   Main program
+  * @param  None
+  * @retval None
+  */
+int main(void)
+{
+  /*!< At this stage the microcontroller clock setting is already configured, 
+       this is done through SystemInit() function which is called from startup
+       file (startup_stm32f10x_xx.s) before to branch to application main.
+       To reconfigure the default setting of SystemInit() function, refer to
+       system_stm32f10x.c file
+     */     
+       
+  /* System Clocks Configuration */
+  RCC_Configuration();
+
+  /* Configure the GPIO ports */
+  GPIO_Configuration();
+
+/* USARTy and USARTz configuration -------------------------------------------*/
+  /* USARTy and USARTz configured as follow:
+        - BaudRate = 230400 baud  
+        - Word Length = 8 Bits
+        - One Stop Bit
+        - No parity
+        - Hardware flow control disabled (RTS and CTS signals)
+        - Receive and transmit enabled
+
+  */
+  USART_InitStructure.USART_BaudRate = 230400;
+  USART_InitStructure.USART_WordLength = USART_WordLength_8b;
+  USART_InitStructure.USART_StopBits = USART_StopBits_1;
+  USART_InitStructure.USART_Parity = USART_Parity_No;
+  USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
+  USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
+
+  /* Configure USARTy */
+  USART_Init(USARTy, &USART_InitStructure);
+  /* Configure USARTz */
+  USART_Init(USARTz, &USART_InitStructure);
+  
+  /* Enable the USARTy */
+  USART_Cmd(USARTy, ENABLE);
+  /* Enable the USARTz */
+  USART_Cmd(USARTz, ENABLE);
+
+  /* Enable USARTy Half Duplex Mode*/
+  USART_HalfDuplexCmd(USARTy, ENABLE);
+  /* Enable USARTz Half Duplex Mode*/
+  USART_HalfDuplexCmd(USARTz, ENABLE);
+
+  while(NbrOfDataToRead2--)
+  {
+    /* Wait until end of transmit */
+    while(USART_GetFlagStatus(USARTy, USART_FLAG_TXE) == RESET)
+    {
+    }
+    /* Write one byte in the USARTy Transmit Data Register */
+    USART_SendData(USARTy, TxBuffer1[TxCounter1++]);
+
+    /* Wait the byte is entirely received by USARTz */  
+    while(USART_GetFlagStatus(USARTz, USART_FLAG_RXNE) == RESET)
+    {
+    }
+    /* Store the received byte in the RxBuffer2 */
+    RxBuffer2[RxCounter2++] = USART_ReceiveData(USARTz);
+  }
+
+  /* Clear the USARTy Data Register */
+  USART_ReceiveData(USARTy);
+
+  while(NbrOfDataToRead1--)
+  { 
+    /* Wait until end of transmit */
+    while(USART_GetFlagStatus(USARTz, USART_FLAG_TXE)== RESET)
+    {
+    }
+    /* Write one byte in the USARTz Transmit Data Register */
+    USART_SendData(USARTz, TxBuffer2[TxCounter2++]);
+
+    /* Wait the byte is entirely received by USARTy */
+    while(USART_GetFlagStatus(USARTy,USART_FLAG_RXNE) == RESET)
+    {
+    }
+    /* Store the received byte in the RxBuffer1 */
+    RxBuffer1[RxCounter1++] = USART_ReceiveData(USARTy);
+  }
+  
+  /* Check the received data with the send ones */
+  TransferStatus1 = Buffercmp(TxBuffer1, RxBuffer2, TxBufferSize1);
+  /* TransferStatus = PASSED, if the data transmitted from USARTy and  
+     received by USARTz are the same */
+  /* TransferStatus = FAILED, if the data transmitted from USARTy and 
+     received by USARTz are different */
+  TransferStatus2 = Buffercmp(TxBuffer2, RxBuffer1, TxBufferSize2);
+  /* TransferStatus = PASSED, if the data transmitted from USARTz and  
+     received by USARTy are the same */
+  /* TransferStatus = FAILED, if the data transmitted from USARTz and 
+     received by USARTy are different */
+
+  while (1)
+  {
+  }
+}
+
+/**
+  * @brief  Configures the different system clocks.
+  * @param  None
+  * @retval None
+  */
+void RCC_Configuration(void)
+{
+  /* Enable GPIO clock */
+  RCC_APB2PeriphClockCmd(USARTy_GPIO_CLK | USARTz_GPIO_CLK | RCC_APB2Periph_AFIO, ENABLE);
+
+#ifndef USE_STM3210C_EVAL
+  /* Enable USARTy Clock */
+  RCC_APB2PeriphClockCmd(USARTy_CLK, ENABLE); 
+#else
+  /* Enable USARTy Clock */
+  RCC_APB1PeriphClockCmd(USARTy_CLK, ENABLE); 
+#endif
+  /* Enable USARTz Clock */
+  RCC_APB1PeriphClockCmd(USARTz_CLK, ENABLE);  
+}
+
+/**
+  * @brief  Configures the different GPIO ports.
+  * @param  None
+  * @retval None
+  */
+void GPIO_Configuration(void)
+{
+  GPIO_InitTypeDef GPIO_InitStructure;
+
+#ifdef USE_STM3210C_EVAL
+  /* Enable the USART3 Pins Software Remapping */
+  GPIO_PinRemapConfig(GPIO_PartialRemap_USART3, ENABLE);
+  
+  /* Enable the USART2 Pins Software Remapping */
+  GPIO_PinRemapConfig(GPIO_Remap_USART2, ENABLE);  
+#elif defined(USE_STM3210B_EVAL) || defined(USE_STM32100B_EVAL)
+  /* Enable the USART2 Pins Software Remapping */
+  GPIO_PinRemapConfig(GPIO_Remap_USART2, ENABLE);
+#endif
+  
+  /* Configure USARTy Tx as alternate function open-drain */
+  GPIO_InitStructure.GPIO_Pin = USARTy_TxPin;
+  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_OD;
+  GPIO_Init(USARTy_GPIO, &GPIO_InitStructure);
+
+  /* Configure USARTz Tx as alternate function open-drain */
+  GPIO_InitStructure.GPIO_Pin = USARTz_TxPin;
+  GPIO_Init(USARTz_GPIO, &GPIO_InitStructure);  
+}
+
+/**
+  * @brief  Compares two buffers.
+  * @param  pBuffer1, pBuffer2: buffers to be compared.
+  * @param  BufferLength: buffer's length
+  * @retval PASSED: pBuffer1 identical to pBuffer2
+  *         FAILED: pBuffer1 differs from pBuffer2
+  */
+TestStatus Buffercmp(uint8_t* pBuffer1, uint8_t* pBuffer2, uint16_t BufferLength)
+{
+  while(BufferLength--)
+  {
+    if(*pBuffer1 != *pBuffer2)
+    {
+      return FAILED;
+    }
+    
+    pBuffer1++;
+    pBuffer2++;
+  }
+
+  return PASSED;  
+}
+
+#ifdef  USE_FULL_ASSERT
+
+/**
+  * @brief  Reports the name of the source file and the source line number
+  *         where the assert_param error has occurred.
+  * @param  file: pointer to the source file name
+  * @param  line: assert_param error line source number
+  * @retval None
+  */
+void assert_failed(uint8_t* file, uint32_t line)
+{ 
+  /* User can add his own implementation to report the file name and line number,
+     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
+
+  /* Infinite loop */
+  while (1)
+  {
+  }
+}
+
+#endif
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+
+/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/